Charles wittenberg



(No Model.) v I I l C. WITTENBERG.

ALARM AND REGISTER ATTACHMENT EUR TELEPHONES.

Patented Jam.l 11, 1887-.

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on the inside of the case.

UNITED STATES PATENT QEErcE.

CHARLES WITTENBERG, OF INDIANAPOLIS, INDIANA, ASSIGNOR TO EDWARD A G. CORNELIUS, OF SAME PLACE.

ALARM ANDk REGISTER ATTACHMENT FoR TELEPHONES. y

SPECIFICATION forming parl'. of Letters Patent N o. 355,742', dated January 11, 1887.

Application filed April 19, 1886. Serial No.199.361. (No model.)

.To all whom, it may concern:

Beit known that I, CHARLES WITTENEERG, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of'Indian'a, have invented a new and useful Improvement in Alarm and Register Attachments for Telephones, of which the following is a specification.

My inventionrelates to an improved means for recording the number of times that a telephone apparatus is used. Y

The objects of my improvement are to provide a normally-closed cover for the transmit-'- ter of a telephone apparatus, a register for recording each opening of said cover, an alarm mechanism controlled by the cover, and means for automatically closing the cover by the movement of the lever which supports the receiver of the telephone apparatus, all as hereinafter fully explained.

rlhe accompanying drawings illustrate my invention.

Figure l is a front'elevation of a telephone apparatus of common form with myimprovement attached. Fig. 2 is a rear view, on a larger scale, ofthe attachment. Fig. 3 is a section at n, Fig. 2, showing the relation of the transmitter, the cover, and the register. Fig. 4 is a partial section at b, Fig. 2, showing the electrical connections for ringing the alarm.

A is the well-known telephonecase containing the magneto bell mechanism and the .terminals of the branch electric circuit in which the telephone is situated.

B is the well-known automatic switch-lever, which also forms a support for the telephonereceiver C. v

D, Fig. 3, is the transmitter.

E is a case arranged to inclose the transmitter, and having an opening, f, through its front Wall oppositethetransmitter-diaphragm. Said opening is normally closed by a sliding cover, h, which is arranged to slide vertically in ways Cover h is raised by means of a lever,j, and is retained in position, when raised, by a catch-lever, k, pivoted at one end to the cover and held normally outward by a spring, Z, so as to engage a stop, m, secured to the side wall of the case E.

O is a sliding trip-bar arranged to slide vertically on the outside of case E. The lower end of said trip-bar is turned in through the side of the case, so, as to engage the catch-lever lc and push it off of stop m when the tripbar is moved downward, as hereinafter eX- 5 5' plained.

The lever B has a short verticalv movement, being drawn up by a spiral spring, a, and downward by the weight of the receiver C. The upper end of the trip-,bar O is connected with lever B, so as to move up and down therewith.

' R represents a register of some well-known form secured to case E, and having any actuating-lever, o, which projects into the path of the sliding cover h, and is actuated thereby at each upward movement of the cover, thus moving the registeringdisk p forward one point each time the cover is raised. s

l? represents an electric generator, with which 7o i an electric circuit is formed by the Wires r and s, which terminate in dat metallic plates t and u, secured to the inside of case E in the path of cover h. An electric bell, S, is arranged p in said electric circuit. A metallicv contactplate, o, is secured to the cover It, so as to pass over and connect the terminals t and u as the cover is raised and lowered, the .arrangement being such that when thecover is at its lowest and its highest points the plate fv passes off of 8o one of the terminals and the circuit is broken.

In operation, the person desiring to use the telephone, having signaled the central station, removes, as usual, the receiver from its support-lever B. Said lever is raised by its spring, and thereby lifts the trip-bar O out of the way of catch-lever k. The operator then depresses the projecting outer end of lever j, and thereby raises the cover h until catch-lever k engages the stop m'. As the cover moves upward,plate @connects the terminals t and u, and bell S continues to ring until the cover has nearly reached the point where lever It will engagethe stop m. An alarm is thus given which callsthe attention of the person'having charge of the telephone and tends-to prevent its unauthorized use.v The cover in it's upward movement, as before explained, engages the actuatinglever 'o of the register, and a record of the movement is thereby made. The roo cover having ,been raised, the transmitter is exposed and the telephone is ready for use.

When the receiver is again hung on lever B, the lever is thereby depressed, moving downward the trip-bar, the inturned end of which engages the edge of the catch-lever 7c and pushes it oil` the stop m. The cover being released falls again, closing the electric circuit, and bell S continues to ring until opening f is wholly closed, thereby tending to prevent the partial closing of the opening.

By the use of this device a convenient means is afforded for showing the extent of the use of the telephone to serve as aba-sis for taxing tolls therefor.

I claim as my inventiong l. The combination of the following elements, namely: atelephone-transmitter, a case adapted to inclose said transmitter, and having an opening therein through which access may be had to the transmitter, a sliding cover arranged to close said opening, a catch-lever and a stop arranged to engage and thereby sustain said cover when raised, a movable telephone-receiver support, and intermediate connecting mechanism, whereby the movement of ysaid support operates to disengage said catchlever and stop, all arranged to co-operate substantially as and for the purpose specied.

2. The combination of a telephonetransmitter, a case arranged to inclose said transmittel', and having an opening therein through which access maybe had to the transmitter, a sliding cover arranged to close said opening,

and a register having its actuating-lever arranged in the path of movement of said sliding cover, all arranged to co-operate substantially as and for the purpose specified.

3. rlhe combination of a telephone-transvniitter, a case arranged to inclose said transmitter, and having an opening therein through which access maybe had to the transmitter, a sliding cover arranged to close said opening, an electric circuit having 4disconnected terminalsarranged in the casein the path of movement of the cover, an electric bell arranged in said circuit, a contact-plate secured to said cover and adapted to connect said terminals during the movement of the cover, and a register having its actuating-lever arranged in the path of the cover, all arranged to co-opcrate substantially as4 and for the purpose specified.

4C. The combination of a telephone-transmitter, as D, case E, having opening f, cover h, lever j, catchdeverk, and stop on, substantially as and for the purpose specified.

CHARLES WITTENBERG.

Witnesses:

H. P. Hoon, V. M. Hoon. 

